The nullish coalescing operator (??) in JavaScript only considers null or undefined as "nullish" values. If the left-hand side is any other value, even falsy values like "" (empty string), 0, or …

Novice JavaScript developers need to know that the "not not" operator is using implicitly the original loose comparison method instead of the exact === or !== operators and also the …

Jun 7, 2011 · If javascript only has 1 of a type of operator, then it is definitely correct to say THE ternary operator and not A ternary operator... Saying "this ternary operator is A ternary …

Jan 25, 2009 · JavaScript now supports the nullish coalescing operator (??). It returns its right-hand-side operand when its left-hand-side operand is null or undefined, and otherwise returns …

Jul 19, 2009 · JavaScript allows upper- and lower-case letters (in a wide variety of scripts, not just English), numbers (but not at the first character), $, _, and others.¹ Prototype, jQuery, and …

In JavaScript there are 7 primitive types: undefined, null, boolean, string, number, bigint and symbol. Everything else is an object. The primitive types boolean, string and number can be …

Feb 7, 2009 · What is the difference between == and === in JavaScript? I have also seen != and !== operators. Are there more such operators?

The reason I sometimes use php name-conventions with javascript variables: When doing input validation, I want to run the exact same algorithms both client-side, and server-side. I really …

Mar 2, 2010 · How to use OR condition in a JavaScript IF statement? Asked 15 years, 7 months ago Modified 2 years, 8 months ago Viewed 877k times

This function below doesn’t work like I want it to; being a JS novice I can’t figure out why. I need it to wait 5 seconds before checking whether the newState is -1. Currently, it doesn’t wait, i...